Originally published on endoflife.ai.

Angular — the TypeScript framework, versions 2 through 21 — has one of the shortest support windows in mainstream front-end development: roughly 18 months per major version. A new major ships about every six months, so a version reaches end of life every six months too. Right now, Angular 19 has already reached EOL (May 18, 2026), and only Angular 20 and 21 are still supported.

This is a different product from AngularJS (1.x), which is a separate, fully end-of-life framework. Don't confuse the two — this covers modern Angular (2+).

Angular version EOL schedule

The 18-month support policy

Each major version gets about 18 months of support, split in two: 6 months of active support (regular updates and bug fixes) then 12 months of LTS (critical and security fixes only). After that, the version is EOL.

A new major ships roughly every six months. Do the arithmetic: with a release twice a year and an 18-month window, there are only ever about three supported majors at once — and one drops off every six months. Skip two cycles and you're already on borrowed time.

This is why Angular apps fall behind faster than any other framework. A team that ships on the current Angular and then focuses on features for a year finds itself two versions back and approaching EOL without changing a line of framework code. Angular demands a standing upgrade habit, not a one-time migration.

Angular 20 & 21 — the supported versions

Angular 21 is the current release and the right target for any upgrade today — longest runway (to May 2027) and the lowest Risk Score in the line. Angular 20 is supported through November 2026 and is a reasonable interim stop.

Modern Angular has reduced upgrade pain: standalone components removed NgModule boilerplate, the new control-flow syntax and signals modernised templates and reactivity, and ng update automates most of the mechanical migration between adjacent majors. The rule: there's no "settle here for years" version. Pick the latest, and budget a recurring upgrade every 6–12 months.

How to stay current with ng update

1. Find your version and the gap. Run ng version, cross-reference the table, see how many majors behind you are.
2. Upgrade one major at a time. Use the Angular Update Guide and run ng update @angular/core@N @angular/cli@N for each successive major — don't skip, the schematics run between adjacent versions.
3. Let the schematics do the refactors. ng update runs code migrations automatically — review each diff rather than rubber-stamping.
4. Update the ecosystem in lockstep. Angular Material, NgRx, and third-party libraries track Angular's majors — a lagging library is the most common blocker.
5. Make it a standing schedule, not a project. Put the next two EOL dates in your roadmap and upgrade before each one.

Stranded several majors back?

Plenty of production apps are stuck on Angular 12–16 because an upgrade was deferred until the gap became daunting. Those apps run EOL framework code (Risk Scores 60–70). Extended support maintains security-patched builds of older Angular majors so a stranded app stays protected while you plan a staged path back.

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